Common process implementation method, apparatus and system

ABSTRACT

Provided are a method, apparatus and system for implementing a common process. The method includes that: a base station transmits a first request message to a CN device, the first request message being used for applying for establishing a first interface, the first interface being an interface between a radio access network (RAN) to which the base station belongs and a CN, and the first request message carrying at least one of: location area information of a specific geographical area configured for paging a UE, information of a public land mobile network (PLMN) supported by the base station, and base station type information of the base station; and the base station receives a first response message transmitted by the CN device, where the first response message is used for indicating that the first interface has been successfully established.

CROSS REFERENCE TO RELATED APPLICATIONS

This application is a continuation of U.S. patent application Ser. No.16/261,530, filed on Jan. 29, 2019, which claims the benefit of priorityto International Patent Application No. PCT/CN2017/093568, filed on Jul.19, 2017, which claims priority to Chinese Patent Application No.201610616340.6 filed with the CNIPA on Jul. 29, 2016, disclosures ofwhich are incorporated herein by reference in their entireties.

TECHNICAL FIELD

The present disclosure relates to the field of communications, forexample, to a method, apparatus and system for implementing a commonprocess.

BACKGROUND

With the continuous evolution of wireless communication technologies andprotocol standards, the mobile packet service has developedtremendously, and the data throughput capability of a single terminalhas been continuously improved. Taking Long Term Evolution (LTE) systemas an example, data transmission at a maximum downlink rate of 100 Mbpsmay be supported in a 20 M bandwidth. In the subsequent enhanced LTEsystem and its subsequent fifth generation (5G) mobile communicationtechnology system with the fifth generation mobile phone communicationstandard, the data transmission rate will be further increased, evenreaching tens of Gbps. The features of 5G technology include: seamlesswide-area coverage, large-capacity hotspots, large number of connectionswith low power consumption, high reliability with low latency, and thelike. One of the design goals of Release 14 for the next-generationradio access network (RAN), released by the 3rd Generation PartnershipProject (3GPP), is to use a single technology architecture to supportmultiple types of traffic such as the enhanced mobile broadband (eMBB),the massive machine type communications (mMTC), and the ultra reliableand low latency communications (URLLC). In order to achieve the abovegoals, the design of the user plane architecture in the 5G New Rat (NR)needs to be flexible enough.

In recent years, the network deployment of a centralized, cooperative,cloud & clean-radio access network (C-RAN) of a baseband unit (BBU) anda radio remote unit (RRU) has been more and more widely applied in manycountries and regions around the world. In order to shield thediversified underlying access technology and support traffic-orientedaccess, the radio access network (RAN) of the 5G access network includesa two-level network functional architecture which includes a wirelesscenter unit (CU) and a wireless distributed unit (DU), similar to thearchitecture of BBU+RRU in LTE. FIG. 1 is a diagram showing a networkarchitecture in which a CU and a DU are deployed in the same networkdevice according to the related art. As shown in FIG. 1, Core representsthe core network and NR BS represents the New Rat Base Station. Thisdeployment mode is called a distributed network architecture. FIG. 2 isa diagram showing a network architecture in which a CU and a DU aredeployed in different network devices according to the related art. Asshown in FIG. 2, this deployment mode is called a centralized networkarchitecture. The CU satisfies the user-centered design concept, and isresponsible for the centralized control and management functions of thewireless network, and may serve as a traffic anchor point for the userterminal. The DU is a remote access unit and includes a radio frequencyfunction and a partial processing function. The interface between the CUand the DU may be called fronthaul, and the specific division positionof the fronthaul (that is, the location at which the division isperformed on the user plane) is currently being standardized.

In addition, in order to achieve the goal of large capacity in 5G, ahigh frequency band and a large bandwidth are bound to be adopted. Thehigh frequency band tends to have a small coverage due to itspropagation characteristics. Therefore, some technical means arerequired to make the massive multiple-input-multiple-output (MM) cameinto being. By adopting the beam forming technology, the linkperformance of the MM may be greatly improved, and thus the purpose ofimproving coverage and capacity is naturally achieved. The MM isconsidered as an effective way to increase the transmission rate ofmodern wireless communication systems, and is a key technology forimproving coverage range and capacity in the 5G communication system. Inthe 5G technology report (TR) 38.913, a variety of scenarios areinvolved, and the number of antennas used in the MM may reach up to 256.The adoption of the beam forming technology by the MM has brought aboutthe demand for beam management. The switching of beams and the mobilityunder beams are all issues to be considered.

At the same time, the “one-size-fits-all” network architecture of thetraditional cellular network has dedicated support and IT systems, maypredict traffic and traffic growth, and is very suitable for a singleservice-type user network. However, with this vertical architecture, itis difficult for operators to expand the telecommunications network andto adjust and meet the needs of new use cases according to changing userneeds. Therefore in the 5G era, the traditional cellular network and“one-size-fits-all” method need to be adjusted to support the use ofthousands of use cases, numerous user types, and various applications.

In the 5G system, the network will further be abstracted into networkslices. Such connection service is defined by functions implemented bylots of custom software. The software functions include geographiccoverage area, duration, capacity, speed, latency, reliability,security, availability, and the like. The network slice may beinterpreted as a collection of a set of functions. For example, a powercompany needs to provide connection for their smart meters. Thisrequirement may be translated into network slices connecting a series ofmachine-to-machine (M2M) devices. The network slice has a certainlatency and the data rate is sufficient to complete the status updateand download at the specified time. However, the service requires a highlevel of security, high availability, and high reliability. The powercompany may also need to provide connection for their fault sensors.Network slices providing such services may receive status metrics fromall M2M devices in the system throughout the day, and require pure datacoverage with high availability and high endurance, and have mediumlevel of security and moderate latency. At the same time, the networkslice providing the connection service based on the use case may beconfigured with various network functions, such as achieving a higherlevel of security or near zero latency.

Currently there is no effective solution for the problem of a lack of amethod for implementing a common process of a ground interface in the 5Gsystem or the eLTE system in the existing art.

SUMMARY

The embodiments provide a method, apparatus and system for implementinga common process, to solve at least the problem of a lack of a methodfor implementing a common process of a ground interface in the 5G systemor the eLTE system in the related art.

An embodiment provides a method for implementing a common process, whichmay include:

transmitting, by a base station, a first request message to a corenetwork (CN) device, wherein the first request message is used forapplying for establishing a first interface between a radio accessnetwork (RAN) to which the base station belongs and a CN, and the firstrequest message carries at least one of: location area information,information of a public land mobile network (PLMN) supported by the basestation, and base station type information of the base station; wherethe location area information refers to a specific geographic areaconfigured for paging a user equipment (UE); and

receiving, by the base station, a first response message transmitted bythe CN device, where the first response message is used for indicatingthat the first interface has been successfully established.

An embodiment further provides another method for implementing a commonprocess, including:

receiving, by a core network (CN) device, a first request messagetransmitted by a base station, where the first request message is usedfor applying for establishing a first interface between a radio accessnetwork (RAN) to which the base station belongs and a CN, and the firstrequest message carries at least one of: location area information,information of a public land mobile network (PLMN) supported by the basestation, and base station type information of the base station; wherethe location area information refers to a specific geographic areaconfigured for paging a user equipment (UE); and

transmitting, by the CN device, a first response message to the basestation, where the first response message is used for indicating thatthe first interface has been successfully established.

An embodiment further provides an apparatus for implementing a commonprocess, applied to a base station, including:

a first transmitting module, which is configured to transmit a firstrequest message to a CN device, where the first request message is usedfor applying for establishing a first interface between a RAN to whichthe base station belongs and a CN, and the first request message carriesat least one of: location area information, information of a PLMNsupported by the base station, and base station type information of thebase station; wherein the location area information refers to a specificgeographic area configured for paging a UE; and

a first receiving module, which is configured to receive a firstresponse message sent by the CN device, where the first response messageis used for indicating that the first interface is successfullyestablished.

An embodiment further provides an apparatus for implementing a commonprocess, which is applied to a core network (CN) device and may include:

a second receiving module, which is configured to receive a firstrequest message transmitted by a base station, where the first requestmessage is used for applying for establishing a first interface betweena RAN to which the base station belongs and a CN, and the first requestmessage carries at least one of: location area information, informationof a PLMN supported by the base station, and base station typeinformation of the base station; where the location area informationrefers to a specific geographic area configured for paging a UE; and

a second transmitting module, which is configured to transmit a firstresponse message to the base station, where the first response messageis used for indicating that the first interface has been successfullyestablished.

An embodiment further provides a system for implementing a commonprocess, which may include a base station and a core network (CN)device.

The base station transmits a first request message to the CN device. Thefirst request message is used for applying for establishing a firstinterface between a radio access network to which the base stationbelongs and a CN, and the first request message carries at least one of:location area information, information of a PLMN supported by the basestation, and base station type information of the base station. Thelocation area information refers to a specific geographic areaconfigured for paging a UE.

The CN device receives the first request message and transmits a firstresponse message to the base station. The first response message is usedfor indicating that the first interface has been successfullyestablished.

The base station receives the first response message transmitted by theCN device.

An embodiment further provides a method for implementing a commonprocess, which may include:

transmitting, by a first base station, a second request message to asecond base station, wherein the second request message is used forapplying for establishing a second interface between the first basestation and the second base station, and the second request messagecarries at least one of: cells under the first base station, beamconfiguration information, information of a public land mobile network(PLMN) supported by the first base station, radio access network (RAN)architecture information, and information of a core network (CN)connected to the base station; wherein the information of the CNcomprises at least one of: CN set information, CN cloud setidentification information, and base station type information of thefirst base station; and

receiving, by the first base station, a second response messagetransmitted by the second base station, wherein the second responsemessage is used for indicating that the second interface has beensuccessfully established.

An embodiment further provides an apparatus for implementing a commonprocess, which is applied to a first base station and may include:

a third transmitting module, which is configured to transmit a secondrequest message to a second base station, wherein the second requestmessage is used for applying for establishing a second interface betweenthe first base station and the second base station, and the secondrequest message carries at least one of: cells under the first basestation, beam configuration information, information of a PLMN supportedby the first base station, RAN architecture information, and informationof a CN connected to the base station; wherein the information of the CNcomprises at least one of: CN set information, CN cloud setidentification information, and base station type information of thefirst base station; and

a third receiving module, which is configured to receive a secondresponse message transmitted by the second base station, wherein thesecond response message is used for indicating that the second interfacehas been successfully established.

An embodiment further provides a computer-readable storage mediumstoring computer-executable instructions for executing any methoddescribed above.

An embodiment further provides a base station including one or moreprocessors, a memory and one or more programs. When executed by the oneor more processors, the one or more programs, which are stored in thememory, execute the corresponding method for implementing a commonprocess described above.

An embodiment further provides a CN device including one or moreprocessors, a memory and one or more programs. When executed by the oneor more processors, the one or more programs, which are stored in thememory, execute the corresponding method for implementing a commonprocess described above.

An embodiment further provides a computer program product including acomputer program stored on a non-transient computer-readable storagemedium. The computer program includes program instructions which, whenexecuted by a computer, cause the computer to execute any of theabove-mentioned methods.

In the process of establishing an interface between the base station andthe CN, the interaction information between the base station and the CNcarries application layer parameters applicable to the 5G system or theeLTE system. A common process is designed according to theabove-mentioned parameters, solving the problem of a lack of a methodfor implementing a common process of a ground interface in the 5G systemor the eLTE system in the related art, and adapting to the newrequirements and changes of the 5G system or the eLTE system.

BRIEF DESCRIPTION OF DRAWINGS

FIG. 1 is a diagram showing a network architecture in which a CU and aDU are deployed in the same network device according to the related art;

FIG. 2 is a diagram showing a network architecture in which a CU and aDU are deployed in different network devices according to the existingart;

FIG. 3 is a flowchart 1 of a method for implementing a common processaccording to an embodiment 1;

FIG. 4 is a flowchart 2 of a method for implementing a common processaccording to the embodiment 1;

FIG. 5 is a flowchart 3 of a method for implementing a common processaccording to the embodiment 1;

FIG. 6 is a flowchart of a method according to an embodiment 1 in theembodiment 1;

FIG. 7 is a flowchart of a method according to an embodiment 2 in theembodiment 1;

FIG. 8 is a flowchart of a method according to an embodiment 3 in theembodiment 1;

FIG. 9 is a flowchart of a method according to an embodiment 4 in theembodiment 1;

FIG. 10 is a flowchart of a method according to an embodiment 5 in theembodiment 1;

FIG. 11 is a flowchart of a method according to an embodiment 6 in theembodiment 1;

FIG. 12 is a structural block diagram of an apparatus for implementing acommon process, applied to a base station, according to an embodiment 2;

FIG. 13 is a structural block diagram of an apparatus for implementing acommon process, applied to a core network (CN), according to theembodiment 2;

FIG. 14 is a structural block diagram of an apparatus for implementing acommon process, applied to a first base station, according to theembodiment 2;

FIG. 15 is a structural diagram of a base station according to anembodiment 4; and

FIG. 16 is a structural diagram of a CN device according to theembodiment 4.

DETAILED DESCRIPTION

The terms “first”, “second” and the like in the specification, claimsand above drawings of the present disclosure are used to distinguishbetween similar objects and are not necessarily used to describe aparticular order or sequence.

The embodiments of the present disclosure may be applied to a 5G system,or an eLTE system.

Embodiment 1

An embodiment provides a method for implementing a common processrunning on the above network architecture. FIG. 3 is a flowchart 1 ofthe method for implementing a common process according to theembodiment. As shown in FIG. 3, the process includes steps describedbelow.

In S302, a base station sends a first request message to a core network(CN) device. The first request message is used for applying forestablishing a first interface which is an interface between a radioaccess network (RAN) to which the base station belongs and the CN, andthe first request message carries at least one of: location areainformation, information of a public land mobile network (PLMN)supported by the base station, and base station type information of thebase station. The location area information refers to a specificgeographic area configured for paging a user equipment (UE).

In S304, the base station receives a first response message sent by theCN device, where the first response message is used for indicating thatthe first interface has been successfully established.

With the above-mentioned steps, the problem of a lack of a method forimplementing a common process of a ground interface in the 5G system orthe eLTE system in the related art is solved, which adapts to the newrequirements and changes of the 5G system or the eLTE system.

Alternatively, the first response message carries at least one of:configuration information of the CN, information of network slicessupported by the CN, and allowed load capacity information of each typeof slice group in the CN.

The UE selects a network slice in the CN according to the allowed loadcapacity information of the slice group, and uses the allowed loadcapacity information of the network slice as a component of text contentof the UE.

Alternatively, the configuration information of the CN includes at leastone of: a CN set identification, a number of the CN device, the PLMNinformation, and CN cloud set identification information.

Alternatively, after receiving the first response message transmitted bythe CN device, the base station transmits a first update message to theCN device, where the first update message is used for instructing the CNdevice to update configuration information of the base station.

And the base station receives a first confirmation message for the firstupdate message transmitted by the CN device.

Alternatively, the first update message carries at least one of:location area information and public land mobile network (PLMN)information.

The same name in the present disclosure has the same use. Unlessotherwise expressly stated in the following, a message, which has beendescribed in the foregoing, is considered to represent the same meaningin the present disclosure.

Alternatively, after the base station receives the first responsemessage transmitted by the CN device, the base station receives anoverload start message or an overload stop message transmitted by the CNdevice. The overload start message is used for indicating that the CN isoverloaded, and the overload stop message is used for indicating that anoverload operation is stopped.

Alternatively, the overload start message carries a slice overloadmessage for indicating that a slice of the CN is overloaded or that aslice of the CN under a specified PLMN is overloaded.

Alternatively, the overload start message transmitted by the CN andreceived by the base station may include overload control operationinformation, where the overload control operation information mayinclude reject information for indicating a slice of the CN that rejectsaccess.

FIG. 4 is a flowchart 2 of a method for implementing a common processaccording to the embodiment. As shown in FIG. 4, the process includessteps described below.

In S402, a core network (CN) device receives a first request messagetransmitted by a base station, where the first request message is usedfor applying for establishing a first interface. The first interface isan interface between a radio access network (RAN) to which the basestation belongs and the CN, and the first request message carries atleast one of: location area information, information of a public landmobile network (PLMN) supported by the base station, and base stationtype information of the base station; where the location areainformation refers to a specific geographic area configured for paging auser equipment (UE).

In S404, the CN device transmits a first response message to the basestation, where the first response message is used for indicating thatthe first interface has been successfully established.

Alternatively, after the core network (CN) device receives the firstrequest message transmitted by the base station, the CN device receivesfirst instruction information sent by a user equipment (UE), where thefirst instruction information is used for instructing the CN device toselect a traffic pattern for the UE.

Alternatively, the first response message carries at least one of:configuration information of the CN, information of network slicessupported by the CN, and allowed load capacity information of each typeof slice group in the CN. The user equipment (UE) selects a networkslice in the CN according to the allowed load capacity information ofthe network slice, and uses the allowed load capacity information of theslice as a component of text content of the UE.

Alternatively, the configuration information of the CN includes at leastone of:

a CN set identification, the number of the CN device, the PLMNinformation, and CN cloud set identification information.

Alternatively, after the CN device transmits the first response messageto the base station, the method further includes that: the CN devicetransmits a second update message to the base station, where the secondupdate message is used for instructing the base station to updateconfiguration information of the CN device; and the CN device receives asecond confirmation message for the second update message transmitted bythe base station.

Alternatively, the second update message carries at least one of:configuration information of the CN, information of network slicessupported by the CN, and allowed load capacity information of each typeof slice group in the CN. The configuration information of the CNincludes at least one of: a CN set identification, the number of the CNdevice, the PLMN information, and CN cloud set identificationinformation. The user equipment (UE) selects a network slice in the CNaccording to the allowed load capacity information of the network slice,and uses the allowed load capacity information of the network slice as acomponent of text content of the UE.

Alternatively, after the CN device transmits a first response message tothe base station, the CN device transmits an overload start message oran overload stop message to the base station. The overload start messageis used for indicating that the CN is overloaded, and the overload stopmessage is used for indicating that an overload operation is stopped.

Alternatively, the overload start message carries a slice overloadmessage for indicating that a slice of the CN is overloaded or that aslice of the CN under a specified PLMN is overloaded.

Alternatively, the overload start message transmitted by the CN to thebase station may include overload control operation information, wherethe overload control operation information may include rejectinformation for indicating a slice of the CN that rejects access.

FIG. 5 is a flowchart 3 of a method for implementing a common processaccording to the embodiment. As shown in FIG. 5, the process includessteps described below.

In S502, a first base station sends a second request message to a secondbase station, where the second request message is used for applying forestablishing a second interface. The second interface is an interfacebetween the first base station and the second base station, and thesecond request message carries at least one of: cells under the firstbase station, beam configuration information, information of a PLMNsupported by the first base station, radio access network (RAN)architecture information, information of a core network (CN) connectedto the base station, and base station type information of the first basestation. The information of the CN includes at least one of: setinformation of the CN and cloud group identification information of theCN.

In S504, the first base station receives a second response messagetransmitted by the second base station, where the second responsemessage is used for indicating that the second interface has beensuccessfully established.

The steps in FIG. 5 are performed between a base station and anotherbase station, and the base stations belong to the radio access network(RAN) in the communication system. With the steps in FIG. 3 or 4, aninterface has been established between the RAN and the core network(CN), and thus a part of the common process of the ground interface isimplemented. FIG. 5 is another part of implementing the common processof the ground interface, that is, the interface establishment processinside the RAN.

Alternatively, the RAN architecture information may include layered modeinformation of a wireless center unit (CU)-wireless distributed unit(DU) when the RAN architecture information is a centralized networkarchitecture.

Alternatively, after the first base station receives the second responsemessage sent by the second base station, the first base station sends athird update message to the second base station, where the third updatemessage is used for instructing the second base station to updateconfiguration information of the first base station; and the first basestation receives a second confirmation message corresponding to thethird update message sent by the second base station.

Alternatively, the third update message carries at least one of: cellsunder the first base station after the configuration information of thefirst base station is updated, beam configuration information after theconfiguration information of the first base station is updated, RANarchitecture information of the first base station, information of a CNconnected to the first base station, and base station type informationof the first base station.

The present disclosure is described by taking the establishment of thecommon process of the ground interface in the 5G system as an example inthe embodiment.

The embodiment provides a method for implementing the ground interfacecommon process as described below. For convenience of description, aninterface between a 5G RAN and a 5G CN is referred to as the firstinterface (i.e., the interface between the base station and the CN), andan interface between the 5G RAN and the 5G RAN node is referred to asthe second interface (i.e., the interface between the base station andthe base station).

1) Method for implementing a common process of the interface between theRAN and the CN (the first interface)

The common process supported by the first interface in the 5G system mayinclude but is not limited to the process described below.

The establishment process of the first interface includes:

an interface establishment request message (sent by the base station inthe RAN to the CN, and equivalent to the first request message in theabove embodiment), an interface establishment response message (sent bythe CN to the base station, and equivalent to the first response messagein the above embodiment), and an interface establishment failure message(sent by the CN to the base station).

The first interface establishment request message may includeinformation of the location area supported by the 5G base station andinformation of all PLMN supported by the 5G base station. When the UE isin an idle state, the CN can know the location area where the UE islocated, which may be used for paging the UE in the idle state.

The first interface establishment request message may include basestation type information, such as an eLTE base station or a NR (in theembodiment, referred to as a 5G system) base station, and the 5G CN isnoticed of the base station type information. The number of connectedbase stations under the core network may be very large, so theconfiguration information related to the base stations is difficult toimplement through the operation administration and maintenance (OAM).The information may be carried in the first interface establishmentrequest message or may be carried through UE-related signaling, forexample, carried in an initial direct transfer message and indicatingthe type of the system that the UE currently accesses. The informationmay be used by the CN to select an appropriate traffic pattern for theUE according to the UE type.

The first interface establishment response message may include 5G CNconfiguration information, such as at least one of a 5G CN setidentification, device number, and PLMN information. If the 5G CN isclouded, the 5G CN configuration information may further carry the cloudgroup identification information.

The first interface establishment response message may includeinformation related to network slices of the 5G CN, and identifiers(IDs) of several slices supported by the CN are delivered to the basestation in the interface establishment response message. Alternatively,the interface establishment response message may further carry allowedload capacity information of each type of slice group in the CN. Theinformation may be used by the UE, when accessing the CN, to select acore network slice according to the allowed load capacity information,and is also considered as a part of the text content of the UE.

After the first interface is established, in the case that aconfiguration of the base station needs to be updated, the interactionbetween the base station and the CN may be completed through the processdescribed below, and the base station configuration updating process mayinclude:

a base station configuration update message (sent by the base station tothe CN, and equivalent to the first update message in the aboveembodiment), a base station configuration update confirmation message(sent by the CN to the base station, and equivalent to the firstconfirmation message in the above embodiment), and a base stationconfiguration update failure message (sent by the CN to the basestation).

The base station configuration update message for the first interfacemay include information of the location area supported by the updated 5Gbase station, and the information of all PLMN currently supported by the5G base station. When the UE is in an idle state, the CN can know thelocation area where the UE is located, which may be used for paging theUE in the idle state.

After the first interface is established, in the case that theconfiguration of the CN device needs to be updated, the interactionbetween the CN and the base station may be completed through the processdescribed below, and the CN configuration updating process may include:

a CN configuration update message (sent by the CN to the base station,and equivalent to the second update message in the above embodiment), aCN configuration update confirmation message (sent by the base stationto the CN, and equivalent to the second confirmation message in theabove embodiment), and a CN configuration update failure message (sentby the base station to the CN).

The CN configuration update message of the first interface may includeupdated 5G CN configuration information, such as at least one of a 5G CNset identification, the device number, and PLMN information. If the 5GCN is clouded, the 5G CN configuration information may carry the cloudgroup identification information.

The CN configuration update message of the first interface may includeinformation related to network slices of the updated 5G CN, and IDs ofseveral slices supported by the CN are delivered to the base station inthe CN configuration update message. Alternatively, the CN configurationupdate message may further carry allowed load capacity information ofeach type of slice group in the CN.

After the first interface is established, the process of the overloadmanagement by the CN includes: an overload start message (sent by the CNto the base station) and an overload stop message (sent by the CN to thebase station).

In the overload start message, the overload management of the slice maybe implemented, and the overload command of different slices ordifferent slices under different PLMNs may be delivered. At the sametime, the overload control operation may inform the base station thataccessing to the slice of the core network is denied.

2) Method for implementing a common process of the interface between theRAN and the RAN (the second interface)

The common process supported by the first interface in the 5G system mayinclude but is not limited to the process described below.

The establishment process of the second interface (i.e., the secondinterface between the base station and the base station) includes: asecond interface establishment request message (sent by a RAN node 1 toa RAN node 2, and equivalent to the second request message in the aboveembodiment, where the nodes in the RAN are the base stations in theabove embodiment), a second interface establishment response message(sent by the RAN node 2 to the RAN node 1, and equivalent to the secondresponse message in the above embodiment), and a second interfaceestablishment failure message (sent by the RAN node 2 to the RAN node1).

The second interface establishment request message may include at leastone of all serving cells under the 5G base station and the beamconfiguration information, for example, may include characteristicinformation of a high-frequency cell, such as a frequency bin andbandwidth, and may further include list information of PLMNs supportedby the cells.

The second interface establishment request message may further includeRAN architecture information, such as centralized architecture ordistributed architecture. If the RAN architecture is centralized, thesecond interface establishment request message may further provide CU-DUlayered mode information, which may be used as a determining factor whenthe base station selects a handover target for the UE.

The second interface establishment request message may further includeinformation of a core network to which the 5G base station belongs, suchas information of a core network group to which the base stationbelongs, or a cloud group ID, which may be used for determining a mobiletype, such as initiating a handover based on the first interface orinitiating a handover based on the second interface.

The second interface establishment request message may further includetype information of the base station or the cell, such as LTE, eLTE, or5G NR.

After the second interface between the base stations is established, ifthe configuration of the base station needs to be updated, the basestation configuration updating process may include:

a base station configuration update message (from the RAN node 1 to theRAN node 2, and equivalent to the third update message in the aboveembodiment), a base station configuration update confirmation message(from the RAN node 2 to the RAN node 1, and equivalent to the thirdconfirmation message in the above embodiment), and a base stationconfiguration update failure message (from the RAN node 2 to the RANnode 1).

The base station configuration update message of the second interfacemay include at least one of the serving cells under the base stationafter the updating and beam configuration information, such as one ormore serving cells under the base station, and information forperforming beam addition, deletion, or modification.

The base station configuration update message of the second interfacemay further include at least one of the RAN architecture information ofthe base station after the updating, information of the core network towhich the base station belongs, and type information of the base stationor the cell.

The above-mentioned method also applies to the eLTE system. The RAN nodemay be an eLTE base station, and the CN node may be a mobilitymanagement entity (MME) or a 5G CN. Then an interface between the eLTEbase station and the 5G CN or the MME may be the first interface, and aninterface between the eLTE base station and the 5G base station or theeLTE base station may be the second interface.

Six sub-embodiments are involved in the following content, namelyembodiments 1 to 6 described below, and a method for implementing acommon process of 5G ground interface is provided.

The process of an embodiment 1 is described below.

1) The establishment process of the first interface includes: aninterface establishment request message (sent by the base station to theCN), an interface establishment response message (sent by the CN to thebase station), and an interface establishment failure message (sent bythe CN to the base station).

FIG. 6 is a flowchart of a method according to the embodiment 1. Asshown in FIG. 6, the method includes steps described below.

In S601, a 5G base station sends a first interface establishment requestmessage to a 5G CN.

The first interface establishment request message may includeinformation of the location areas supported by the 5G base station andinformation of all PLMNs supported by the 5G base station. When the UEis in an idle state, the CN can know the location area where the UE islocated, which may be used for paging the UE in the idle state. Thelocation area may be set by the 5G network side. The first interfaceestablishment request message may further include base station typeinformation, such as an eLTE base station or a NR base station, and the5G CN is noticed of the base station type information. The number ofbase stations connected to the MME may be very large, so theconfiguration information related to the base station is difficult toimplement through the OAM. The information may be carried in the firstinterface establishment request message or may be carried throughUE-related signaling. For example, the message is carried in an initialdirect transfer message and indicates the type of the system that the UEcurrently accesses. The information may be used by the CN to select anappropriate traffic pattern for the UE according to the UE type.

In S602, if the process is successful, the 5G CN sends a first interfaceestablishment response message to the 5G base station, and if theprocess is unsuccessful, S603 is performed.

The first interface establishment response message may include 5G CNconfiguration information, such as at least one of a 5G CN setidentification, the device number, and PLMN information. If the 5G CN isclouded, the 5G CN configuration information may further include thecloud group identification information. The first interfaceestablishment response message may include information related tonetwork slices of the 5G CN. For example, IDs of slices supported by theCN are delivered to the base station in the interface establishmentresponse message.

Alternatively, the above-mentioned first interface establishmentresponse message may further carry allowed load capacity information ofeach type of slice group in the CN. The allowed load capacityinformation may be used by the UE, when accessing the CN, to select acore network slice and is considered as a part of the text content ofthe UE. For example, when the UE accesses the base station, the basestation may select an appropriate core network slice for the UEaccording to the UE type, the traffic type, the load capacityinformation related to the slice, and the like.

In S603, the 5G CN sends a first interface establishment failure messageto the 5G base station, where the message may include a failure cause, awaiting time, and the like.

The process of an embodiment 2 is described below.

2) The base station configuration updating process may include: a basestation configuration update message (sent by the base station to theCN), a base station configuration update confirmation message (sent bythe CN to the base station), and a base station configuration updatefailure message (sent by the CN to the base station).

FIG. 7 is a flowchart of a method according to the embodiment 2. Asshown in FIG. 7, the method includes the following steps.

In S701, a 5G base station sends the base station configuration updatemessage to a 5G CN.

The base station configuration update message of the first interface mayinclude information of the location areas supported by the updated 5Gbase station and the information of all PLMNs supported by the current5G base station. When the UE is in an idle state, the CN can know thelocation area where the UE is located, and the location area may be usedfor paging the UE in the idle state.

In S702, if the process is successful, the 5G CN sends a base stationconfiguration update confirmation message to the 5G base station.Otherwise, S703 is performed.

In S703, the 5G CN sends a base station configuration update failuremessage to the 5G base station.

The process of an embodiment 3 is described below.

3) The CN configuration updating includes: a CN configuration updatemessage (sent by the CN to the base station), a CN configuration updateconfirmation message (sent by the base station to the CN), and a CNconfiguration update failure message (sent by the base station to theCN).

FIG. 8 is a flowchart of a method according to the embodiment 3. Asshown in FIG. 8, the method includes the following steps.

In S801, a 5G CN sends the CN configuration update message, namely theCN configuration update message of a first interface, to a 5G basestation.

The CN configuration update message of the first interface may includeupdated 5G CN configuration information, such as a 5G CN setidentification, a device number, and PLMN information. If the 5G CN isclouded, the 5G CN configuration information may further include thecloud group identification information. The CN configuration updatemessage of the first interface may further include information relatedto network slices of the updated 5G CN, and a plurality of slice IDssupported by the core network may be added to the interfaceestablishment response message and delivered to the base station.

Alternatively, the CN configuration update message of the firstinterface may further carry allowed load capacity information of eachtype of slice group in the CN. The information may be used by the UE,when accessing to the CN, to select a core network slice and isconsidered as a part of the text content of the UE. For example, whenthe UE accesses the base station, the base station may select anappropriate core network slice for the UE according to the UE type, thetraffic type, the load capacity information related to the slice, andthe like.

In S802, if the process is successful, the 5G base station sends a CNconfiguration update confirmation message to the 5G CN. Otherwise, S803is performed.

In S803, the 5G base station sends a CN configuration update failuremessage to the 5G CN.

The process of an embodiment 4 is described below.

4) The CN overload management may include: an overload start message(sent by the CN to the base station) and an overload stop message (sentby the CN to the base station).

FIG. 9 is a flowchart of a method according to the embodiment 4. Asshown in FIG. 9, the method includes the following steps.

In S901, when the 5G CN is overloaded, the 5G CN sends the overloadstart message to a 5G base station.

In the overload start message of a first interface, the overloadmanagement of the slice may be implemented, and the overload command ofdifferent slices or different slices under different PLMNs may bedelivered. At the same time, the overload control operation may instructthe base station to deny the access of the slice-related user.Alternatively, after receiving the overload start message, the 5G basestation may determine whether the current overload control operationoverwrites the previous overload operation behavior according to theinformation carried in the overload start message. For example, when thebase station receives a new overload operation command for the sameslice, the previous overload operation command may be overwritten andthe new overload operation command is directly executed. Similarly, thesame rule may also be employed for the overload stop operation.

In S902, when the 5G CN needs to stop the overload operation, the 5G CNsends the overload stop message to the 5G base station.

The process of an embodiment 5 is described below.

5) The establishment process of the second interface may include: aninterface establishment request message (from a RAN node 1 to a RAN node2), an interface establishment response message (from the RAN node 2 tothe RAN node 1), and an interface establishment failure message (fromthe RAN node 2 to the RAN node 1).

FIG. 10 is a flowchart of a method according to the embodiment 5. Asshown in FIG. 10, the method includes the following steps.

In S1001, a 5G base station 1 sends a second interface establishmentrequest message to a 5G base station 2.

The second interface establishment request message may include at leastone of: all serving cells under the 5G base station 1 and the beamconfiguration information, for example characteristic information of ahigh-frequency cell, such as the cell identification information,frequency bin and bandwidth. If the beam information is included, thebeam information includes one or more of the following information: thebeam ID, the beam coverage range, and the number of beams in a singlecell. The beam information may further include list information of PLMNssupported by the cell or the beam.

The second interface establishment request message may further includeRAN architecture information of the 5G base station 1, such ascentralized or distributed architecture information. If the RANarchitecture is centralized, second interface establishment requestmessage may further include CU-DU layered mode information, which may beused as a determining factor when the base station selects a handovertarget for the UE. The second interface establishment request messagemay further include information of a core network to which the 5G basestation 1 belongs, such as information of a core network group to whichthe base station belongs, or a cloud group ID, which may be used fordetermining a mobile type, such as initiating a handover based on thefirst interface or initiating a handover based on the second interface.

The second interface establishment request message may further includetype information of the 5G base station 1 or the cell, such as LTE,eLTE, or 5G NR, and may further include information related to networkslices of the 5G CN supported by the 5G base station 1, such as IDinformation of one or more network slices of the 5G CN, which may beused for selecting an appropriate target base station for a terminalsupporting the network slice when mobility determination is performed onthe terminal.

In S1002, if the process is successful, the 5G base station 2 sends asecond interface establishment response message to the 5G basestation 1. Otherwise, S1003 is performed.

The second interface establishment response message may include at leastone of: all serving cells under the 5G base station 2 and the beamconfiguration information, such as the cell identification information,the frequency bin and the bandwidth. If the beam configurationinformation is included in the second interface establishment responsemessage, the beam configuration information includes one or more of: thebeam ID, the beam coverage range, and the number of beams in a singlecell. The second interface establishment response message may furtherinclude the list information of PLMNs supported by the cell or the beam.The second interface establishment request message may further includeRAN architecture information of the 5G base station 2, such ascentralized or distributed architecture information. If the RANarchitecture is centralized, the second interface establishment responsemessage may include CU-DU layered mode information, which may be used asa determining factor when the base station selects a handover target forthe UE.

The second interface establishment request message may further includeinformation of a core network to which the 5G base station 2 belongs,such as information of a core network group to which the base stationbelongs, or a cloud group ID, which may be used for determining a mobiletype, such as initiating a handover based on the first interface orinitiating a handover based on the second interface. The secondinterface establishment request message may further include typeinformation of the 5G base station 2 or the cell, such as LTE, eLTE, or5G NR. Optionally, the second interface establishment response messagemay further include information related to network slices of the 5G CNsupported by the 5G base station 2, such as ID information of one ormore network slices of the 5G CN, which may be used to select anappropriate target base station for a terminal supporting the networkslice when mobility determination is performed on the terminal.

In S1003, if the process fails, the 5G base station 2 sends a secondinterface establishment failure message to the 5G base station 1. Thisconfiguration update failure message may include why the establishmentfails, a waiting time, and the like.

The process of an embodiment 6 is described below.

6) The base station configuration updating process may include: a basestation configuration update message (from a RAN node 1 to a RAN node2), a base station configuration update confirmation message (from theRAN node 2 to the RAN node 1), and a base station configuration updatefailure message (from the RAN node 2 to the RAN node 1).

FIG. 11 is a flowchart of a method according to the embodiment 6. Asshown in FIG. 11, the method includes the following steps.

In S1101, a 5G base station 1 sends a base station configuration updatemessage to a 5G base station 2.

The base station configuration update message of the second interfacemay include at least one of: the serving cells under the updated basestation and beam configuration information, such as one or more servingcells under the base station, and information for performing beamaddition, deletion, or modification. The base station configurationupdate message of the second interface may further include at least oneof the RAN architecture information of the updated base station,information of the core network to which the base station belongs, typeinformation of the base station or the cell, and information related tonetwork slices of the 5G CN supported by the base station.

In S1102, if the process is successful, the 5G base station 2 sends abase station configuration update confirmation message to the 5G basestation 1. Otherwise, step S1103 is performed.

In S1103, if the process fails, the 5G base station 2 sends a basestation configuration update failure message to the 5G base station 1.The configuration update failure message may include why theestablishment fails, a waiting time, and the like.

The above is a description of the six sub-embodiments. By adopting themethod for implementing a common process of a 5G ground interfaceprovided in the embodiments, the new requirements and new features ofthe 5G system can be satisfied, and the management of the interfacebetween the RAN and the CN (the first interface) and interface betweenthe RAN and the RAN (the second interface) in the 5G system is realized,thereby meeting the basic requirements of the common process in the 5Gsystem.

Embodiment 2

An embodiment provides an apparatus for implementing a common process.The apparatus may perform any one of the methods provided in theabove-mentioned embodiments. Details are not described herein again.

FIG. 12 is a structural block diagram of an apparatus for implementing acommon process, applied to a base station, according to the embodiment.As shown in FIG. 12, the apparatus may include a first transmittingmodule 122 and a first receiving module 124.

The first transmitting module 122 is configured to transmit a firstrequest message to a core network (CN) device.

The first request message is used for applying for establishing a firstinterface. The first interface is an interface between a radio accessnetwork (RAN) to which the base station belongs and the CN, and thefirst request message carries at least one of: location areainformation, information of a public land mobile network (PLMN)supported by the base station, and base station type information of thebase station. The location area information refers to a specificgeographic area configured for paging a UE.

The first receiving module 124 is coupled to the first sending module122, and is configured to receive a first response message transmittedby the CN device, where the first response message is used forindicating that the first interface has been successfully established.

Alternatively, the first response message carries at least one of:configuration information of the CN, information of network slicessupported by the CN, and allowed load capacity information of each typeof slice group in the CN. The user equipment (UE) selects a networkslice in the CN according to the allowed load capacity information ofthe network slice, and uses the allowed load capacity information of theslice as a component of text content of the UE.

Alternatively, the configuration information of the CN includes at leastone of: a CN set identification, a number of the CN device, the PLMNinformation, and CN cloud set identification information.

Alternatively, after the first receiving module 124 receives the firstresponse message transmitted by the CN device, it is further configuredthat the base station transmits a first update message to the CN device,where the first update message is used for instructing the CN device toupdate configuration information of the base station. And the basestation receives a first confirmation message for the first updatemessage transmitted by the CN device.

Alternatively, the first update message carries at least one of:location area information and public land mobile network (PLMN)information.

Alternatively, after receiving the first response message transmitted bythe CN device, the first receiving module 124 is further configured toreceive an overload start message or an overload stop messagetransmitted by the CN device. The overload start message is used forindicating that the CN is overloaded, and the overload stop message isused for indicating that an overload operation is stopped.

Alternatively, the overload start message carries a slice overloadmessage for indicating that a slice of the CN is overloaded or that aslice of the CN under a specified PLMN is overloaded.

Alternatively, the overload start message transmitted by the CN andreceived by the base station may include overload control operationinformation. The overload control operation information may includereject information for indicating a slice of the CN that rejects access.

FIG. 13 is a structural block diagram of an apparatus for implementing acommon process, applied to a core network (CN) device, according to theembodiment. As shown in FIG. 13, the apparatus may include a secondreceiving module 132 and a second transmitting module 134.

The second receiving module 132 is configured to receive a first requestmessage transmitted by a base station.

The first request message is used for applying for establishing a firstinterface. The first interface is an interface between a radio accessnetwork (RAN) to which the base station belongs and the CN, and thefirst request message carries at least one of: location areainformation, information of a public land mobile network (PLMN)supported by the base station, and base station type information of thebase station. The location area information refers to a specificgeographic area configured for paging a UE.

The second sending module 134 is coupled to the second receiving module132 and is configured to transmit a first response message to the basestation. The first response message is used for indicating that thefirst interface has been successfully established.

Alternatively, after the CN device receives the first request messagetransmitted by the base station, the second receiving module 132 isfurther configured to receive first instruction information transmittedby a user equipment (UE). The first instruction information is used forinstructing the CN device to select a traffic pattern for the UE.

Alternatively, the first response message carries at least one of:

configuration information of the CN, information of network slicessupported by the CN, and allowed load capacity information of each typeof slice group in the CN.

The UE selects a network slice in the CN according to the allowed loadcapacity information of the network slice, and uses the allowed loadcapacity information of the slice as a component of text content of theUE.

Alternatively, the configuration information of the CN includes at leastone of:

A CN set identification, the number of the CN device, the PLMNinformation, and CN cloud set identification information of.

Alternatively, the second sending module 134 is further configured totransmit a second update message to the base station and receive asecond confirmation message for the second update message transmitted bythe base station. The second update message is used for instructing thebase station to update configuration information of the CN device.

The second update message carries at least one of:

configuration information of the CN, information of network slicessupported by the CN, and allowed load capacity information of each typeof slice group in the CN.

The configuration information of the CN includes at least one of: a CNset identification, the number of the CN device, the PLMN information,and CN cloud set identification information.

The UE selects a network slice in the CN according to the allowed loadcapacity information of the network slice, and uses the allowed loadcapacity information of the slice as a component of text content of theUE.

Alternatively, after the CN device transmits the first response messageto the base station, the second sending module 134 is further configuredto transmit an overload start message or an overload stop message to thebase station. The overload start message is used for indicating that theCN is overloaded, and the overload stop message is used for indicatingthat an overload operation is stopped.

Alternatively, the overload start message carries a slice overloadmessage for indicating that a slice of the CN is overloaded or that aslice of the CN under a specified PLMN is overloaded.

Alternatively, the overload start message transmitted by the CN deviceto the base station may include overload control operation information.The overload control operation information may include rejectinformation for indicating a slice of the CN that rejects access.

FIG. 14 is a structural block diagram of an apparatus for implementing acommon process, applied to a first base station, according to theembodiment. As shown in FIG. 14, the apparatus may include a thirdtransmitting module 142 and a third receiving module 144.

The third transmitting module 142 is configured to transmit a secondrequest message to a second base station.

The second request message is used for applying for establishing asecond interface. The second interface is an interface between the firstbase station and the second base station, and the second request messagecarries at least one of: cells under the first base station, beamconfiguration information, information of PLMNs supported by the firstbase station, RAN architecture information, information of a corenetwork (CN) connected to the base station, and base station typeinformation of the first base station. The information of the CNincludes at least one of: CN set information and CN cloud setidentification information.

The third receiving module 144 is configured to receive a secondresponse message transmitted by the second base station. The secondresponse message is used for indicating that the second interface hasbeen successfully established.

Alternatively, the RAN architecture information may include layered modeinformation of a wireless center unit (CU)-wireless distributed unit(DU) when the RAN architecture is a centralized network architecture.

Alternatively, after receiving the second response message transmittedby the second base station, the third receiving module 144 is furtherconfigured to transmit a third update message to the second basestation, and receive a third confirmation message for the third updatemessage transmitted by the second base station. The third update messageis used for instructing the second base station to update configurationinformation of the first base station;

Alternatively, the third update message carries at least one of:

cells under the first base station after the first base station isupdated, beam configuration information, RAN architecture information ofthe first base station, information of a CN connected to the first basestation, and base station type information of the first base station.

Embodiment 3

An embodiment provides a system for implementing a common process. Thesystem may include a base station and a CN device.

The base station transmits a first request message to the CN device,where the first request message is used for applying for establishing afirst interface. The first request message is an interface between aradio access network (RAN) to which the base station belongs and the CN,and the first request message carries at least one of: location areainformation, information of a PLMN supported by the base station, andbase station type information of the base station. The location areainformation refers to a specific geographic area configured for paging aUE.

The CN device receives the first request message and transmits a firstresponse message to the base station. The first response message is usedfor indicating that the first interface has been successfullyestablished.

The base station receives the first response message transmitted by theCN device.

Alternatively, the first response message carries at least one of:

configuration information of the CN, information of network slicessupported by the CN, and allowed load capacity information of each typeof slice group in the CN. The UE selects a network slice in the CNaccording to the allowed load capacity information of the network slice,and uses the allowed load capacity information of the slice as acomponent of text content of the UE.

Alternatively, the configuration information of the CN includes one of:

a CN set identification, the number of the CN device, the PLMNinformation, and CN cloud set identification information.

Embodiment 4

An embodiment provides a storage medium. Optionally, in the embodiment,the storage medium may be configured to store program codes forexecuting the steps described below.

In S1, a base station transmits a first request message to a CN device.The first request message is used for applying for establishing a firstinterface. The first interface is an interface between a radio accessnetwork (RAN) to which the base station belongs and the CN, and thefirst request message carries at least one of: location areainformation, information of a PLMN supported by the base station, andbase station type information of the base station. The location areainformation refers to a specific geographic area configured for paging aUE.

In S2, the base station receives a first response message transmitted bythe CN device. The first response message is used for indicating thatthe first interface has been successfully established.

Alternatively, the storage medium may further be configured to storeprogram codes for executing the steps described below.

In S3, a first base station transmits a second request message to asecond base station.

The second request message is used for applying for establishing asecond interface. The second interface is an interface between the firstbase station and the second base station, and the second request messagecarries at least one of: cells under the first base station, beamconfiguration information, information of a PLMN supported by the firstbase station, RAN architecture information, information of a CNconnected to the base station, and base station type information of thefirst base station. The information of the CN includes at least one of:the CN set information and CN cloud set identification information.

In S4, the first base station receives a second response messagetransmitted by the second base station. The second response message isused for indicating that the second interface has been successfullyestablished.

Alternatively, in the embodiment, the above-mentioned storage medium mayinclude, but is not limited to, a USB flash disk, a read-only memory(ROM), a random access memory (RAM), a mobile hard disk, a magneticdisk, an optic disk, or other mediums that may store program codes.

Alternatively, in the embodiment, a processor performs the method stepsin the above-mentioned embodiments according to the program codes storedin the storage medium.

Alternatively, any method provided in the above-mentioned embodimentsmay be referred to in the embodiment, and details are not describedherein again.

An embodiment further provides a computer-readable storage mediumstoring computer-executable instructions for performing any one of theabove-mentioned methods.

An embodiment further provides a base station. FIG. 15 is a structuraldiagram of the base station according to the embodiment. As shown inFIG. 15, the base station includes a processor 152 and a memory 154, andmay further include a communications interface 156 and a bus 158.

The processor 152, the memory 154, and the communications interface 156may communicate with each other through the bus 158. The communicationsinterface 156 may be used for information transmission. The processor152 may invoke logic instructions in the memory 154 to perform any oneof the methods of the above-mentioned embodiments.

The memory 154 may include a program storage region and a data storageregion. The program storage region may store an operating system and anapplication program required by at least one function while the datastorage region may store data created according to use of a basestation. In addition, the memory may include a volatile memory, such asa random access memory (RAM), and may also include a nonvolatile memory,such as at least one dick memory, a flash memory or other nonvolatilesolid-state memories.

In addition, the logic instructions in the memory 154 may be implementedin the form of a software function unit and, when sold or used as anindependent product, may be stored in a computer-readable storagemedium. The technical solutions of the present disclosure may beembodied in the form of a software product that may be stored in astorage medium and includes one or more instructions for enabling acomputer device (which may be a personal computer, server, networkdevice, etc.) to execute all or part of the steps of the method providedin the embodiments.

An embodiment further provides a CN device. FIG. 16 is a structuraldiagram of the CN device according to the embodiment. As shown in FIG.16, the CN device includes a processor 162 and a memory 164, and mayfurther include a communications interface 166 and a bus 168.

The processor 162, the memory 164, and the communications interface 166may communicate with each other through the bus 168. The communicationsinterface 166 may be used for information transmission. The processor162 may invoke logic instructions in the memory 164 to perform any oneof the methods of the above-mentioned embodiments.

The memory 164 may include a program storage region and a data storageregion. The program storage region may store an operating system and anapplication program required by at least one function while the datastorage region may store data created according to use of a CN device.In addition, the memory may include a volatile memory, such as a randomaccess memory (RAM), and may also include a nonvolatile memory, such asat least one dick memory, a flash memory or other nonvolatilesolid-state memories.

In addition, the logic instructions in the memory 164 may be implementedin the form of a software function unit and, when sold or used as anindependent product, may be stored in a computer-readable storagemedium. The technical solutions of the present disclosure may beembodied in the form of a software product that may be stored in astorage medium and includes one or more instructions for enabling acomputer device (which may be a personal computer, server, networkdevice, etc.) to execute all or part of the steps of the method providedin the embodiments.

The storage medium may be a non-transitory storage medium or atransitory storage medium. The non-transitory storage medium mayinclude: a USB flash disk, a mobile hard disk, a read-only memory (ROM),a random access memory (RAM), a magnetic disk, an optic disk, or anothermedium that may store program codes.

All or part of the processes in the methods of the above-mentionedembodiments may be implemented by related hardware instructed bycomputer programs. These programs may be stored in a non-transitorycomputer-readable storage medium, and when executed, may include theprocesses of the methods in the above-mentioned embodiments.

What is claimed is:
 1. A communication method, comprising: transmitting,by a base station, a first request message to a core network (CN) deviceto setup a first interface between the base station and the CN, whereinthe first request message includes location area information and basestation type information of the base station; and receiving, by the basestation, a first response message transmitted by the CN device, whereinthe first response message indicates that the first interface has beensuccessfully setup, and wherein the first response message includes aconfiguration information of the CN.
 2. The method of claim 1, whereinthe first response message includes allowed load capacity information ofeach type of slice group in the CN; wherein a user equipment (UE)selects a network slice in the CN according to the allowed load capacityinformation of the network slice, and uses the allowed load capacityinformation of the network slice as a component of text content of theUE.
 3. The method of claim 1, wherein the configuration information ofthe CN comprises a public land mobile network (PLMN) information.
 4. Themethod of claim 1, wherein after the receiving, by the base station, thefirst response message transmitted by the CN device, the method furthercomprises: transmitting, by the base station, a first update message tothe CN device, wherein the first update message instructs the CN deviceto update configuration information of the base station, wherein thefirst update message comprises the location area information and apublic land mobile network (PLMN) information; and receiving, by thebase station, a first confirmation message in response to the firstupdate message transmitted by the CN device.
 5. The method of claim 1,wherein the configuration information of the CN comprises CN cloud setidentification information.
 6. The method of claim 1, wherein after thereceiving, by the base station, the first response message transmittedby the CN device, the method further comprises: receiving, by the basestation, an overload stop message transmitted by the CN device, whereinthe overload stop message indicates that an overload operation isstopped.
 7. The method of claim 1, wherein the base station typeinformation indicates that the base station is an enhanced long-termevolution (eLTE) base station or a new radio (NR) base station.
 8. Acommunication method, comprising: receiving, by a core network (CN)device, a first request message transmitted by a base station to setup afirst interface between the base station and the CN, wherein the firstrequest message includes location area information and base station typeinformation of the base station; and transmitting, by the CN device, afirst response message to the base station, wherein the first responsemessage indicates that the first interface has been successfully setup,and wherein the first response message includes a configurationinformation of the CN.
 9. The method of claim 8, wherein theconfiguration information of the CN comprises a public land mobilenetwork (PLMN) information.
 10. The method of claim 8, wherein after thetransmitting, by the CN device, the first response message to the basestation, the method further comprises: transmitting, by the CN device, asecond update message to the base station, wherein the second updatemessage is used for instructing the base station to update configurationinformation of the CN device; and receiving, by the CN device, a secondconfirmation message for the second update message transmitted by thebase station.
 11. The method of claim 10, wherein the second updatemessage includes allowed load capacity information of each type of slicegroup in the CN; wherein a user equipment (UE) selects a network slicein the CN according to the allowed load capacity information of eachnetwork slice, and uses the allowed load capacity information of thenetwork slice as a component of text content of the UE.
 12. The methodof claim 8, wherein after the transmitting, by the CN device, the firstresponse message to the base station, the method further comprises:receiving, by the CN device, a first update message from the basestation, wherein the first update message instructs the CN device toupdate configuration information of the base station, wherein the firstupdate message includes a location area information and a public landmobile network (PLMN) information; and transmitting, by the CN device, afirst confirmation message to the base station in response to the firstupdate message received by the CN device.
 13. The method of claim 8,wherein after the transmitting, by the CN device, the first responsemessage to the base station, the method further comprises: transmitting,by the CN device, an overload stop message to the base station, whereinthe overload stop message indicates that an overload operation isstopped.
 14. The method of claim 8, wherein the base station typeinformation indicates that the base station is an enhanced long-termevolution (eLTE) base station or a new radio (NR) base station.
 15. Anapparatus, comprising: a processor configured to: transmit a firstrequest message to a core network (CN) device to setup a first interfacebetween a base station and the CN, and wherein the first request messageincludes location area information and base station type information ofthe base station; and receive a first response message sent by the CNdevice, wherein the first response message indicates that the firstinterface is successfully setup, and wherein the first response messageincludes a configuration information of the CN.
 16. The apparatus ofclaim 15, wherein the first response message includes allowed loadcapacity information of each type of slice group in the CN; wherein auser equipment (UE) selects a network slice in the CN according to theallowed load capacity information of the network slice, and uses theallowed load capacity information of the network slice as a component oftext content of the UE.
 17. The apparatus of claim 15, wherein theconfiguration information of the CN comprises a public land mobilenetwork (PLMN) information.
 18. The apparatus of claim 15, wherein afterthe first response message is received, the processor is furtherconfigured to: transmit a first update message to the CN device, whereinthe first update message instructs the CN device to update configurationinformation of the base station, wherein the first update messagecomprises the location area information and a public land mobile network(PLMN) information; and receiving, by the base station, a firstconfirmation message in response to the first update message transmittedby the CN device.
 19. An apparatus, comprising: a processor configuredto: receive, by a core network (CN) device, a first request messagetransmitted by a base station to setup a first interface between thebase station and the CN, wherein the first request message includeslocation area information and base station type information of the basestation; and transmit, by the CN device, a first response message to thebase station, wherein the first response message indicates that thefirst interface has been successfully setup, and wherein the firstresponse message includes a configuration information of the CN.
 20. Theapparatus of claim 19, wherein the configuration information of the CNcomprises a public land mobile network (PLMN) information.
 21. Theapparatus of claim 19, wherein after the transmit, by the CN device, thefirst response message to the base station, the processor is furtherconfigured to: transmit, by the CN device, a second update message tothe base station, wherein the second update message is used to instructthe base station to update configuration information of the CN device;and receive, by the CN device, a second confirmation message for thesecond update message transmitted by the base station.
 22. The apparatusof claim 21, wherein the second update message includes allowed loadcapacity information of each type of slice group in the CN; wherein auser equipment (UE) selects a network slice in the CN according to theallowed load capacity information of each network slice, and uses theallowed load capacity information of the network slice as a component oftext content of the UE.